DESOETE, Annemie; BATEN, Elke. Math Learning in Grade-4 and 5: What Can We Learn Form The Opportunity-Propensity Model?. International Electronic Journal of Elementary Education, [S. l.], v. 14, n. 3, p. 213–225, 2022. Disponível em: https://www.iejee.com/index.php/IEJEE/article/view/1685. Acesso em: 4 aug. 2026.